WO1997023174A1 - Interbody-type intervertebral implant - Google Patents

Interbody-type intervertebral implant Download PDF

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Publication number
WO1997023174A1
WO1997023174A1 PCT/FR1996/002032 FR9602032W WO9723174A1 WO 1997023174 A1 WO1997023174 A1 WO 1997023174A1 FR 9602032 W FR9602032 W FR 9602032W WO 9723174 A1 WO9723174 A1 WO 9723174A1
Authority
WO
WIPO (PCT)
Prior art keywords
implant
body
characterized
cavity
graft
Prior art date
Application number
PCT/FR1996/002032
Other languages
French (fr)
Inventor
Arsène GROSSE
Emmanuel Braun
Emile Dehoux
Guido Delefortrie
Everard Munting
Original Assignee
Colorado
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR95/15600 priority Critical
Priority to FR9515600A priority patent/FR2742652B1/en
Application filed by Colorado filed Critical Colorado
Publication of WO1997023174A1 publication Critical patent/WO1997023174A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0069Three-dimensional shapes cylindrical

Abstract

An implant (1) including a body (5) receiving a bone graft (2) and having upper and lower (5a) surfaces engageable with the cancellous bone of the vertebral end plates (3a), and at least one side projection (6) with a size substantially equal to the vertebral interspace to be restored, said projection (6) being insertable between the vertebral end plates (3a). The upper and lower (5a) surfaces of the body (5) have a cross-section with a curved outline, and the projection (6) is shaped in such a way that it projects beyond the shell of said body (5).

Description

IMPLANT INTERVERTEBRAL CAGE TYPE From INTERSOHATIQUE

The present invention relates to an intervertebral implant, of the type commonly referred to as "intersomatic cage", allowing to achieve the immobilization of two adjacent vertebrae. It also relates to three ancillary instruments for the implementation of this implant.

Degeneration of an intervertebral disc leads to a local compression of the spinal cord and nerve roots. It is then necessary to restore the intervertebral space and immobilize the vertebrae located on either side of the affected disk.

One technique consists of implanting a bone graft between the two endplates, after removal of the disc. Such graft however weakly resistant to the stresses exerted by the movements of the patient and may be inserted in the long run in either of the vertebrae.

It was then devised to place the graft into a rigid implant, or "intersomatic cage", open at its upper and lower ends. Such an implant has a height greater than that of the intervertebral space to be restored, so that it is necessary, when preparing the site to widen the hard subchondral bone of the vertebral plates until the cancellous bone. After implantation, the graft as well comes into contact with the spongy bone and osseointegration can take place.

Some cages are cylindrical or tapered general form. These cages have the drawback to present risks of significant insertion in one or other of the vertebrae. Indeed, they are based primarily on the cancellous bone and rounded favors the insertion. It is certainly possible to reduce the upper and lower openings of the dimensions of the cage, to increase the bearing against the bone surface but this reduction is at the expense of the contact surface of the graft with the bone, thus the the expense of the strength of the merger. Other cages have a rectangular shape.

They are at risk of lower insertion that the cylindrical cages, thanks to their planar bearing surfaces and have a height less than that of cylindrical cages, allowing less removal of bone subchondral.

However, the construction of a square or rectangular section housing involves drilling a bore and a recess in the subchondral bone of the four corners of the housing by means of a chisel cutter. The handling of such an instrument, near the spinal cord and nerve roots, is extremely delicate.

There is a general cage-like parallélélipédique, each of the upper and lower surfaces comprises a longitudinal rib projecting from its central region. Openings are appointed through these ribs.

This cage is shaped so that after implantation, its upper and lower surfaces bear against the cortical endplates and that said ridges are engaged in the cancellous bone of the vertebrae. This support upper and lower faces of the cage is designed to limit the insertion of the cage into the spongy bone. The cage comprises notches arranged in the angles formed by its top, bottom and side. These notches may together form portions of a helical thread.

A circular housing is drilled between the two vertebrae to be treated, so as to locally remove the cortical endplates and to reach the cancellous bone. The cage is placed in this housing, for impaction or by screwing.

The upper and lower faces of the cage bear against cortical bone areas thinned, since cut bevel during drilling of the housing.

Moreover, the impaction of the cage results in damaging these bearing zones cortical, and screwing the cage leads to a bore of the housing to the dimensions of said ribs, greater than the diameter of the housing. In addition, the bearing surfaces of the upper and lower faces of the cage are reduced, in particular because of the presence of the aforesaid notches.

The present invention aims to remedy all the drawbacks of interbody cages prior art.

The implant or "cage" which it relates comprises a body accommodating a bone graft, including the top and bottom faces are intended to come into contact with the spongy bone of the vertebral plates when the implant is in place, and least one lateral protuberance the height of which corresponds substantially to that of the intervertebral space to be restored, this protuberance being intended to be inserted between the vertebral plates, level surfaces made of hard subchondral bone.

According to the invention:

- the upper and lower faces of the body of the implant has a curvilinear cross-sectional contour, and - the one or more projections are shaped so as to protrude beyond the envelope of this body.

The curvilinear shape of the upper and lower surfaces allows one • spatial receiver housing body of the implant by drilling one or more bores through the affected disc and the vertebral endplates, so as to locally remove the subchondral bone these trays.

One or two grooves are provided on one or both sides of the housing for receiving the or protrusions of the implant.

The aforementioned holes or are relatively easy to perform, without risk of injury, and the layout of the grooves or only through the disc, is also relatively easy to perform operation.

The one or more protuberances abut against areas of the subchondral bone located beyond the housing, thus not damaged by the arrangement of the housing or by insertion of the implant therein, and further significant bearing surfaces.

This or these protuberances and perfectly opposed to any insertion of the implant in cancellous bone.

Therefore, the implant may include upper and lower openings of maximum dimensions, the surface is increased by the curvilinear shape of upper and lower faces of the body of the implant.

These openings and this curvilinear shape also allow the graft and compressing a possibility of lateral visualization of cancellous graft-bone interface by radiography.

The implant allows a perfect intervertebral fusion.

Preferably, the implant comprises a protuberance placed, when in place on the outer side of the vertebrae relative to the axis of the spine, thus at a distance from the spinal cord and nerve centers.

Any risk of injury is reduced to the maximum.

The body of the implant may have a circular cross-sectional shape. Preferably, however, the cross section has an annular or oval shape, with the largest dimension of this ring or oval that placed vertically when the implant is in place.

This annular or oval shape allows the implant to have, for a given height, a lesser width than a circular section of cage. The receiver housing of the implant is thus maintained at a distance from the spinal cord and nerve centers located along the axis of the spine. The protuberance can have parallel support surfaces, in the case of an implant to be placed between substantially parallel plates to the vertebrae. The protrusion may also have inclined bearing surfaces so as to converge towards each other towards the posterior end of the implant. Such an implant is adapted to the vertebrae whose plates are not parallel, and can restore the anatomical lordosis of the vertebrae, which existed before the degradation of the disc. The implant body may further present a constant cross section, in particular cylindrical, or a cross section tapered towards the posterior end of the implant. The body of the implant is also involved in restoration of anatomical lordosis of the vertebrae.

In addition, the body may have a rear face inclined so that the lower surface of the body is increased. Such an implant can be used in case of spondylolisthesis, and has a maximum bearing surface of the lower vertebra.

The implant according to the invention can be implemented by posterior or anterior approach, and includes threaded bores formed in its posterior and anterior faces, for mounting on the end of an insertion instrument and impaction. Preferably, these bores opening into the cavity of the implant receiving the graft, to allow injection of cancellous bone chips into this cavity, with this instrument, described below.

Also provided three ancillary instruments used for the implementation of the implant.

The first of these tools is a drill guide including a tubular portion adapted to guide a drill bit and two parallel blades with cutting free end, projecting longitudinally from one end of said tubular portion, on two opposite sides thereof ; one of these blades has a height and a thickness substantially corresponding to the maximum height and thickness of the protrusion of the implant.

These blades are intended to be inserted into the disc before drilling the housing to receive the body of the implant. They allow perfect immobilization of the drill guide relative to the disc and vertebrae. The blade whose height and thickness substantially correspond to the maximum height and thickness of the lateral protuberance of the implant makes it possible to convert, by this simple insertion, the groove for receiving this protrusion. The second blade allows, in turn, ensure the rotational stability of the drill guide.

The second of these ancillary instruments osteotome allowing the removal of the bone graft for filling the implant. The osteotome includes a cavity for receiving the graft taken, the entrance is defined by a free edge cutting edge, this cavity having a shape corresponding substantially to the shape of the cavity of the implant. The graft taken thus adapts precisely to the cavity of the implant. The third ancillary instrument is the introduction aforementioned instrument and impaction of the implant between the vertebrae. According to the invention, this instrument is tubular and includes a piston slidable in its interior bore. It thus allows to operate an injection of cancellous bone chips within the cavity of the implant, so as to ensure the complete filling of the cavity.

For a good understanding, the invention is again described below with reference to the attached schematic drawing showing, as non-limiting examples, several embodiments of the intervertebral implant it concerns and a form realization of various ancillary instruments for the implementation of this implant.

Figure 1 is a perspective view of the implant according to a first embodiment; FIG 2 is a sectional view along the line II-II of Figure 1; Figure 3 is a side view, after implanting between two vertebrae; Figure 4 is a posterior view of two vertebrae after insertion of an implant on the right side and bore on the left side of the housing for receiving an implant; 5 is a top view of the two implants after placement; Figure 6 is a perspective view of a first ancillary instrument for the introduction of the implant; Figure 7 is an end view of the instrument, in use; Figure 8 is an end view of the instrument, according to a variant; Figure 9 is a perspective view of a second instrument, allowing the removal of a bone graft; Figure 10 is a sectional view along line XX of Figure 9; Figure 11 is a longitudinal sectional view of a third ancillary instrument for the implementation of this implant, in a disassembled state; Figure 12 is a partial view of the instrument during the creation of an implant, in a first position; Figure 13 is a view similar to Figure 12, in a second position of the instrument; Figures 14 to 19 are views, similar to Figure 1, the implant according to several alternative embodiments, and Figure 20 is an implant profile view shown in Figure 19, after implanting between two vertebrae, in the case of spondylolisthesis.

Figures 1 and 2 show, from different angles, an intervertebral implant 1, of the type commonly referred to as "intersomatic cage". As is apparent in Figures 3 to 5, two implants 1 are each intended to receive a bone graft 2 and to be inserted between two vertebrae 3, the disk 4 is deteriorated. The implants 1 allow to restore the intervertebral space and achieve the relative immobilization of vertebrae 3.

The implant 1 comprises a body 5 and a lateral projection 6.

The body 5 has a cross section of annular shape and internally defines a cavity 10 for receiving the graft 2. The cavity 10 opens on

• 1 outside by two wide openings in the rounded longitudinal faces 5a of the body 5.

Both end faces 5b of the body 5 each comprise a central threaded bore 12, and one of them includes a transverse groove 13. The protrusion 6 is formed integrally with the body 5. It has two longitudinal faces 6a, which converge towards each other towards one of the faces 5b of the body 5, symmetrically with respect to a median longitudinal plane of the projection 6.

It appears in Figures 3 and 4, the body 5 has a height greater than the intervertebral space to restore. The design of the housing 15 for receiving the body 5 therefore involves digging not only the disc 4 but also the subchondral bone of the vertebral plates 3a, until the cancellous bone. The graft 2 can thus come into contact with the spongy bone that osseointegration can occur.

For against, the height of the protrusion 6 substantially corresponds to the height of the intervertebral space to be restored, and this protrusion is designed to be engaged in a groove 16 arranged on the outer side of the housing 15, Replies disc 4. The protuberance 6 is thus inserted between the vertebral plates 3a, the level of non-resected surfaces thereof, consist of hard subchondral bone, these plates 3a bearing against the faces 6a.

Figure 6 shows a drill guide 20 allows to arrange the housing 15 and the groove 16. The drill guide 20 comprises a tubular portion 21 adapted to guide a drill bit and two parallel plates 22,23 with cutting free end. These blades 22,23 protrude longitudinally from the one end of this tubular part 21, on two opposite sides thereof. The blade 22 has a height and a thickness substantially corresponding to the maximum height and thickness of the protuberance 6.

The tubular portion 21 is annular in shape and allows the development of the housing 15, by drilling two offset parallel bores. As shown in Figure 7, this tubular portion 21 includes two barrels 24 partially intersecting, of guiding the drill. Figure 8 shows that, according to a variant, this part 21 may include an annular recess and a removable longitudinal wedge 25 crescent shaped, allowing to successively delimit each of the two drill bushes.

Figures 9 and 10 illustrate an osteotome 30 enabling the removal of the bone graft 2. This osteotome 30 includes, at one end, a striking head 31 and at its other end, a cavity 32 for receiving the graft taken, including the entry is delimited by a free edge 33. this edge cavity 32 has a shape corresponding substantially to the shape of the cavity 10, so that the graft 2 is taken exactly fits the cavity. The osteotome 30 also includes a cursor 35 placed at the bottom of the cavity 32, guided by a rod 36 sliding in a bore 37 and can be actuated through a pin 38. The slider 35 allows easy ejection of the graft 2 out of the cavity 32. figures 11 to 13 show an instrument 40 for introducing and impaction of the implant 1 into the housing 15 and the groove 16.

This instrument 40 comprises a tubular body 41, a striking head 42 at one end and a threaded stud 43 at its other end. This tip 43 may be screwed into either of the bores 12 of the implant 1, as the latter is implemented by anterior or posterior approach.

In addition, the instrument 40 includes a rod 45 forming a piston slidable in the inner bore 46 of body 41.

In practice, the vertebrae are distractées 3 for the drilling of 15,16 housing and inserting cages 1. As shown in Figure 7, the drill guide

20 is first irapacté until complete insertion of the blades 22,23 in the disc 4. The blades 22,23, once inserted, perfectly immobilize the drill guide 20. The blade 22 makes it possible to arrange the groove 16 by the simple insertion, while the blade 23 provides rotational stability of the drill guide 20.

L * osteotome 30 allows taking the graft 2, especially in the iliac crest of the patient. The sharp edge 33 ensures that the cutting graft 2 to the shape of the cavity 10 when hammering is exerted on the striking head 31. The graft is thus obtained in a single block. Its transfer into the cavity 10 is performed easily and quickly using the slider 35.

After drilling of two bores allowing to arrange the housing 15 and removing the guide 20, the implant 1 is mounted on the tip 43 of the instrument 40 is then impacted into the housing 15 and the groove 16. Once set instead, an injection of cancellous bone chips within the cavity 10 may be operated by pressure on the plunger 45, as shown in Figure 13, so as to ensure the complete filling of the cavity 10.

The groove 13 permits, in the case of a faulty positioning of the implant 1 during impaction, rotate the implant 1 on itself to bring it into proper position.

Figures 14 to 19 show that many variations are possible within the shape of the implant 1. In general, the body 5 may have a cross section of circular shape (Figures 15,18,19), annular (Figures 14,16,17) or oval, with the largest dimension of this ring or oval that placed vertically when the implant 1 is introduced.

The body 5 may also have a constant cross-section (Figures 14,15,19), or a cross section which decreases towards the posterior end of the implant 1 (Figures 16,17,18), so that this body part 5, together with the protuberance 6, the restoration of anatomical lordosis of the vertebrae 3.

The protrusion 6, in turn, can have support surfaces 6a which converge towards the posterior end of the implant 1 (Figures 17,18,19), at angles ranging from 1 to 15 degrees, or may have parallel support surfaces 6a (figures 14,15,16) for the introduction of the implant between substantially parallel plates to the vertebrae. In addition, as shown in Figure 19, the body 5 may have a rear inclined face 5b so as to increase the lower surface of the body 5. Such an implant can be introduced in case of spondylolisthesis, as shown in Figure 20, and has a maximum bearing surface of the lower vertebra 3.

It goes without saying that the invention is not limited to the embodiments described above as examples, but it encompasses, on the contrary, all variants. Thus, 1'implant openings may occupy a very large part of the faces 5a, as shown, or occupy only a smaller part thereof; the body 5 may comprise one or more transverse bulkheads in the cavity 10.

Claims

1 - An intervertebral implant for achieving immobilization of two adjacent vertebrae, comprising a body (5) receiving a bone graft (2) whose top and bottom surfaces (5a) are designed to come in contact with the cancellous bone vertebral plates (3a) when the implant is in place, and at least one lateral protuberance (6), whose height corresponds substantially to that of the intervertebral space to be restored, this protuberance (6) being intended to be inserted between the vertebral plates (3a), at surfaces made of hard subchondral bone, implant (1) characterized in that:
- the upper and lower faces (5a) of the body (5) have a curved cross-sectional contour, and
- the protrusion (6) is shaped to protrude beyond the envelope of this body (5).
2 - implant according to claim 1, characterized in that it comprises a protuberance (6) placed, when in place on the outer side of the vertebrae (3) relative to the axis of the spine.
3 - implant according to claim 1 or claim 2, characterized in that its body (5) has a cross section of circular, annular or oval, with the largest dimension of this ring or of the oval disposed vertically when the implant (1) is established.
4 - An implant according to one of claims 1 to 3, characterized in that its protuberance (6) has bearing surfaces (6a) which are parallel, or inclined so as to converge toward one another towards the posterior end of the implant (1).
5 - An implant according to one of claims 1 to 4, characterized in that its body (5) has a constant cross section, in particular cylindrical, or a cross section tapering towards its rear end.
6 - An implant according to one of claims 1 to 5, characterized in that its body (5) has a rear face (5b) inclined so that the lower surface of the body (5) is increased.
7 - An implant according to one of claims 1 to 6, characterized in that it comprises bores (12) formed in its posterior and anterior faces (5b), these bores (12) opening into the cavity (10) receiving the graft (2).
8 - drill guide for one of the receiver housing arrangement (15,16) of the implant according to one of claims 1 to 7, characterized in that it comprises a tubular portion (21) adapted to guide a drill bore and two parallel blades (22,23) with sharp free end, projecting longitudinally from one end of this tubular portion (21), on two opposite sides thereof, one (22) of these blades having a height and a thickness substantially corresponding to the maximum height and thickness of the protuberance (6) of the implant (1).
9 - osteotome for taking the graft (2) intended to fill the implant (1) according to one of claims 1 to 7, characterized in that it comprises a cavity (32) for receiving the graft taken, including entry is delimited by a free cutting edge (33), said cavity (32) having a shape substantially corresponding to the shape of the cavity (10) of the implant (1). 10 - Instrument for introducing between the vertebrae and the impaction of the implant (1) according to claim 7, characterized in that it is tubular and in that it comprises a rod (45) forming a piston, slidable in the inner bore (46) of this instrument (40) for allowing to operate an injection of cancellous bone chips within the cavity (10) 1'implant (1).
PCT/FR1996/002032 1995-12-21 1996-12-19 Interbody-type intervertebral implant WO1997023174A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR95/15600 1995-12-21
FR9515600A FR2742652B1 (en) 1995-12-21 1995-12-21 Intervertebral implant of the type intersomatic cage

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP19960942434 EP0871419B1 (en) 1995-12-21 1996-12-19 Interbody-type intervertebral implant
DK96942434T DK0871419T3 (en) 1995-12-21 1996-12-19 Intervertebral implant configured as intersomatic cage
DE1996616823 DE69616823D1 (en) 1995-12-21 1996-12-19 formed intervertebral implant as swirls cage
AT96942434T AT208172T (en) 1995-12-21 1996-12-19 formed intervertebral implant as swirls cage
DE1996616823 DE69616823T2 (en) 1995-12-21 1996-12-19 formed intervertebral implant as swirls cage

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WO1997023174A1 true WO1997023174A1 (en) 1997-07-03

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EP (1) EP0871419B1 (en)
AT (1) AT208172T (en)
DE (2) DE69616823D1 (en)
DK (1) DK0871419T3 (en)
ES (1) ES2163666T3 (en)
FR (1) FR2742652B1 (en)
WO (1) WO1997023174A1 (en)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769827A1 (en) * 1997-10-17 1999-04-23 Sdm Intersomatic spinal implant
WO1999009913A3 (en) * 1997-08-26 1999-05-06 Philippe Bouquet Spinal implant and cutting tool preparation accesory for mounting the implant
WO1999029271A1 (en) * 1997-12-10 1999-06-17 Sdgi Holdings, Inc. Osteogenic fusion device
EP0955022A2 (en) * 1998-05-06 1999-11-10 Johnson & Johnson Professional, Inc. Morsellized bone allograft applicator device
WO1999059481A1 (en) * 1998-05-19 1999-11-25 Sulzer Spine-Tech Inc. Multi-lumen spinal implant guide and method
WO2000003654A3 (en) * 1998-07-16 2000-04-20 Sulzer Spine Tech Inc Apparatus and method for spinal stabilization
FR2788686A1 (en) * 1999-01-26 2000-07-28 Scient X Inter vertebral surgical implant has parallelepiped cage with ridge on saggital wall to lock onto place
WO2000044317A1 (en) * 1998-01-23 2000-08-03 Aesculap Ag & Co. Kg Intervertebral implant
WO2000024326A3 (en) * 1998-10-28 2000-08-31 Tai Friesem Methods and instruments for spinal surgery
WO2002034172A1 (en) * 2000-10-24 2002-05-02 Sdgi Holdings, Inc. Osteogenic packing device and method
US6648916B1 (en) 1997-12-10 2003-11-18 Sdgi Holdings, Inc. Osteogenic fusion device
US6761738B1 (en) 2000-09-19 2004-07-13 Sdgi Holdings, Inc. Reinforced molded implant formed of cortical bone
WO2005102227A1 (en) * 2004-04-26 2005-11-03 Synthes Gmbh Device for manipulating hollow intervertebral or disk prostheses and supplying said prostheses with a flowable osteocementum
US7074226B2 (en) 2002-09-19 2006-07-11 Sdgi Holdings, Inc. Oval dilator and retractor set and method
AU2001292826B2 (en) * 2000-09-19 2006-09-28 Warsaw Orthopedic, Inc. Osteogenic fusion devices
US7169183B2 (en) 2000-03-14 2007-01-30 Warsaw Orthopedic, Inc. Vertebral implant for promoting arthrodesis of the spine
US7285135B2 (en) 1997-12-10 2007-10-23 Warsaw Orthopedic, Inc. Osteogenic fusion device
US7935149B2 (en) 2001-04-02 2011-05-03 Warsaw Orthopedic, Inc. Spinal fusion implant with bone screws
US8137403B2 (en) 2001-04-02 2012-03-20 Warsaw Orthopedic, Inc. Hemi-interbody spinal fusion implants manufactured from a major long bone ring
US8292957B2 (en) 2000-04-19 2012-10-23 Warsaw Orthopedic, Inc. Bone hemi-lumbar arcuate interbody spinal fusion implant having an asymmetrical leading end
US8323340B2 (en) 2000-04-19 2012-12-04 Warsaw Orthopedic, Inc. Artificial hemi-lumbar interbody spinal implant having an asymmetrical leading end
US8343220B2 (en) 1999-05-05 2013-01-01 Warsaw Orthopedic, Inc. Nested interbody spinal fusion implants
US8840614B2 (en) 2010-11-15 2014-09-23 DePuy Synthes Products, LLC Graft collection and containment system for bone defects
US8882835B2 (en) * 1999-03-05 2014-11-11 Warsaw Orthopedic, Inc. Interbody spinal fusion implant having an anatomically conformed trailing end
US8992618B2 (en) 2004-04-26 2015-03-31 DePuy Synthes Products, LLC Intervertebral prosthesis or disk prosthesis
US9216096B2 (en) 2010-03-16 2015-12-22 Pinnacle Spine Group, Llc Intervertebral implants and related tools
US9380932B1 (en) 2011-11-02 2016-07-05 Pinnacle Spine Group, Llc Retractor devices for minimally invasive access to the spine
US9867714B1 (en) 2011-09-23 2018-01-16 Samy Abdou Spinal fixation devices and methods of use
US10070970B2 (en) 2013-03-14 2018-09-11 Pinnacle Spine Group, Llc Interbody implants and graft delivery systems
US10111757B2 (en) 2012-10-22 2018-10-30 Cogent Spine, LLC Devices and methods for spinal stabilization and instrumentation
WO2018200469A1 (en) * 2017-04-24 2018-11-01 University Of Maryland, Baltimore Cloward-style cervical mesh cage with lateral stabilizers

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6241769B1 (en) * 1998-05-06 2001-06-05 Cortek, Inc. Implant for spinal fusion
US6241734B1 (en) 1998-08-14 2001-06-05 Kyphon, Inc. Systems and methods for placing materials into bone
US6547823B2 (en) * 1999-01-22 2003-04-15 Osteotech, Inc. Intervertebral implant
WO2001049220A1 (en) 1999-12-30 2001-07-12 Osteotech, Inc. Intervertebral implants
US20030120274A1 (en) 2000-10-20 2003-06-26 Morris John W. Implant retaining device
US6855167B2 (en) 2001-12-05 2005-02-15 Osteotech, Inc. Spinal intervertebral implant, interconnections for such implant and processes for making
WO2005072656A1 (en) 2004-01-27 2005-08-11 Osteotech, Inc. Stabilized bone graft
WO2008095052A2 (en) 2007-01-30 2008-08-07 Loma Vista Medical, Inc., Biological navigation device
AU2008216371B2 (en) 2007-02-12 2014-04-10 Warsaw Orthopedic, Inc. Joint revision implant
US20090299401A1 (en) 2008-06-02 2009-12-03 Loma Vista Medical, Inc. Inflatable medical devices
WO2012009486A2 (en) 2010-07-13 2012-01-19 Loma Vista Medical, Inc. Inflatable medical devices
US10188436B2 (en) 2010-11-09 2019-01-29 Loma Vista Medical, Inc. Inflatable medical devices
AT12828U1 (en) * 2011-05-27 2012-12-15 Sabitzer Ronald J Dr Implant and insertion device for use with such an implant

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736738A (en) * 1984-07-09 1988-04-12 Matej Lipovsek Instrument kit and procedure for performing posterior lumbar interbody fusion
EP0421485A1 (en) * 1987-02-26 1991-04-10 Pfizer Hospital Products Group, Inc. Apparatus for placement of a spinal implant
WO1993001771A1 (en) * 1991-07-22 1993-02-04 Calcitek, Inc. Spinal disk implant
WO1994017759A1 (en) * 1993-02-10 1994-08-18 Spine-Tech, Inc. Spinal stabilization surgical tool set
EP0637440A1 (en) * 1993-08-06 1995-02-08 ADVANCED TECHNICAL FABRICATION (Société Anonyme) Interbody implant for the spine
FR2710519A1 (en) * 1993-09-29 1995-04-07 Robine Dominique Intervertebral lumbar cage (CH)
US5458638A (en) * 1989-07-06 1995-10-17 Spine-Tech, Inc. Non-threaded spinal implant
WO1995031947A1 (en) * 1994-05-23 1995-11-30 Spine-Tech, Inc. Intervertebral fusion implant

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736738A (en) * 1984-07-09 1988-04-12 Matej Lipovsek Instrument kit and procedure for performing posterior lumbar interbody fusion
EP0421485A1 (en) * 1987-02-26 1991-04-10 Pfizer Hospital Products Group, Inc. Apparatus for placement of a spinal implant
US5458638A (en) * 1989-07-06 1995-10-17 Spine-Tech, Inc. Non-threaded spinal implant
WO1993001771A1 (en) * 1991-07-22 1993-02-04 Calcitek, Inc. Spinal disk implant
WO1994017759A1 (en) * 1993-02-10 1994-08-18 Spine-Tech, Inc. Spinal stabilization surgical tool set
EP0637440A1 (en) * 1993-08-06 1995-02-08 ADVANCED TECHNICAL FABRICATION (Société Anonyme) Interbody implant for the spine
FR2710519A1 (en) * 1993-09-29 1995-04-07 Robine Dominique Intervertebral lumbar cage (CH)
WO1995031947A1 (en) * 1994-05-23 1995-11-30 Spine-Tech, Inc. Intervertebral fusion implant

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6610089B1 (en) 1997-08-26 2003-08-26 Sdgi Holdings, Inc. Spinal implant and cutting tool preparation accessory for mounting the implant
WO1999009913A3 (en) * 1997-08-26 1999-05-06 Philippe Bouquet Spinal implant and cutting tool preparation accesory for mounting the implant
US6746484B1 (en) 1997-08-26 2004-06-08 Society De Fabrication De Materiel De Orthopedique, S.A. Spinal implant
US7465305B2 (en) 1997-08-26 2008-12-16 Warsaw Orthopedic, Inc. Spinal implant and cutting tool preparation accessory for mounting the implant
WO1999020208A1 (en) * 1997-10-17 1999-04-29 Sbm Societe Anonyme Implant for interbody fusion of the spine and the like
FR2769827A1 (en) * 1997-10-17 1999-04-23 Sdm Intersomatic spinal implant
WO1999029271A1 (en) * 1997-12-10 1999-06-17 Sdgi Holdings, Inc. Osteogenic fusion device
US7285135B2 (en) 1997-12-10 2007-10-23 Warsaw Orthopedic, Inc. Osteogenic fusion device
US7179293B2 (en) 1997-12-10 2007-02-20 Warsaw Orthopedic, Inc. Osteogenic fusion device
US8685102B2 (en) 1997-12-10 2014-04-01 Warsaw Orthopedic, Inc. Osteogenic fusion device
US7763079B2 (en) 1997-12-10 2010-07-27 Warsaw Orthopedic, Inc. Osteogenic fusion device
US6648916B1 (en) 1997-12-10 2003-11-18 Sdgi Holdings, Inc. Osteogenic fusion device
US8177848B2 (en) 1997-12-10 2012-05-15 Warsaw Orthopedic, Inc. Osteogenic fusion device
WO2000044317A1 (en) * 1998-01-23 2000-08-03 Aesculap Ag & Co. Kg Intervertebral implant
EP0955022A2 (en) * 1998-05-06 1999-11-10 Johnson & Johnson Professional, Inc. Morsellized bone allograft applicator device
EP0955022A3 (en) * 1998-05-06 2001-03-28 Johnson & Johnson Professional, Inc. Morsellized bone allograft applicator device
US6171339B1 (en) 1998-05-19 2001-01-09 Sulzer Spine-Tech Inc. Multi-lumen spinal implant guide and method
WO1999059481A1 (en) * 1998-05-19 1999-11-25 Sulzer Spine-Tech Inc. Multi-lumen spinal implant guide and method
WO2000003654A3 (en) * 1998-07-16 2000-04-20 Sulzer Spine Tech Inc Apparatus and method for spinal stabilization
US6228022B1 (en) 1998-10-28 2001-05-08 Sdgi Holdings, Inc. Methods and instruments for spinal surgery
WO2000024326A3 (en) * 1998-10-28 2000-08-31 Tai Friesem Methods and instruments for spinal surgery
FR2788686A1 (en) * 1999-01-26 2000-07-28 Scient X Inter vertebral surgical implant has parallelepiped cage with ridge on saggital wall to lock onto place
WO2000044318A1 (en) * 1999-01-26 2000-08-03 Scient'x Interbody vertebral implant with sagittal insertion
US6666889B1 (en) 1999-01-26 2003-12-23 Scient'x (Societe Anonyme) Intersomatic implant for sagittal insertion and suitable for being offset transversely in the frontal plane
US8882835B2 (en) * 1999-03-05 2014-11-11 Warsaw Orthopedic, Inc. Interbody spinal fusion implant having an anatomically conformed trailing end
US9078768B2 (en) 1999-03-05 2015-07-14 Warsaw Orthopedic, Inc. Arcuate interbody spinal fusion implant having a reduced width and an anatomically conformed trailing end
US8343220B2 (en) 1999-05-05 2013-01-01 Warsaw Orthopedic, Inc. Nested interbody spinal fusion implants
US7169183B2 (en) 2000-03-14 2007-01-30 Warsaw Orthopedic, Inc. Vertebral implant for promoting arthrodesis of the spine
US8323340B2 (en) 2000-04-19 2012-12-04 Warsaw Orthopedic, Inc. Artificial hemi-lumbar interbody spinal implant having an asymmetrical leading end
US8834569B2 (en) 2000-04-19 2014-09-16 Warsaw Orthopedic, Inc. Artificial hemi-lumbar interbody spinal fusion cage having an asymmetrical leading end
US8292957B2 (en) 2000-04-19 2012-10-23 Warsaw Orthopedic, Inc. Bone hemi-lumbar arcuate interbody spinal fusion implant having an asymmetrical leading end
US7618460B2 (en) 2000-09-19 2009-11-17 Warsaw Orthopedic, Inc. Reinforced molded implant formed of cortical bone
US6761738B1 (en) 2000-09-19 2004-07-13 Sdgi Holdings, Inc. Reinforced molded implant formed of cortical bone
AU2001292826B2 (en) * 2000-09-19 2006-09-28 Warsaw Orthopedic, Inc. Osteogenic fusion devices
US6780192B2 (en) 2000-10-24 2004-08-24 Sdgi Holdings, Inc. Osteogenic packing device and method
US7550011B2 (en) 2000-10-24 2009-06-23 Warsaw Orthopedic, Inc. Osteogenic packing device and method
US8177845B2 (en) 2000-10-24 2012-05-15 Warsaw Orthopedic, Inc. Osteogenic packing device and method
WO2002034172A1 (en) * 2000-10-24 2002-05-02 Sdgi Holdings, Inc. Osteogenic packing device and method
US8137403B2 (en) 2001-04-02 2012-03-20 Warsaw Orthopedic, Inc. Hemi-interbody spinal fusion implants manufactured from a major long bone ring
US7935149B2 (en) 2001-04-02 2011-05-03 Warsaw Orthopedic, Inc. Spinal fusion implant with bone screws
US9463098B2 (en) 2001-04-02 2016-10-11 Warsaw Orthopedic, Inc. Spinal fusion implant with bone screws and a bone screw lock
US8926703B2 (en) 2001-04-02 2015-01-06 Warsaw Orthopedic, Inc. Spinal fusion implant with bone screws and a bone screw lock
US7618431B2 (en) 2002-09-19 2009-11-17 Warsaw Orthopedic, Inc. Oval dilator and retractor set and method
US7074226B2 (en) 2002-09-19 2006-07-11 Sdgi Holdings, Inc. Oval dilator and retractor set and method
US9408719B2 (en) 2004-04-26 2016-08-09 DePuy Synthes Products, Inc. Intervertebral prosthesis or disk prosthesis
US8992618B2 (en) 2004-04-26 2015-03-31 DePuy Synthes Products, LLC Intervertebral prosthesis or disk prosthesis
US10085851B2 (en) 2004-04-26 2018-10-02 DePuy Synthes Products, Inc. Intervertebral prosthesis or disk prosthesis
WO2005102227A1 (en) * 2004-04-26 2005-11-03 Synthes Gmbh Device for manipulating hollow intervertebral or disk prostheses and supplying said prostheses with a flowable osteocementum
US9700432B2 (en) 2004-04-26 2017-07-11 DePuy Synthes Products, Inc. Intervertebral prosthesis or disk prosthesis
US9216096B2 (en) 2010-03-16 2015-12-22 Pinnacle Spine Group, Llc Intervertebral implants and related tools
US9649203B2 (en) 2010-03-16 2017-05-16 Pinnacle Spine Group, Llc Methods of post-filling an intervertebral implant
US9788973B2 (en) 2010-03-16 2017-10-17 Pinnacle Spine Group, Llc Spinal implant
US8840614B2 (en) 2010-11-15 2014-09-23 DePuy Synthes Products, LLC Graft collection and containment system for bone defects
US9782259B2 (en) 2010-11-15 2017-10-10 DePuy Synthes Products, Inc. Graft collection and containment system for bone defects
US9867714B1 (en) 2011-09-23 2018-01-16 Samy Abdou Spinal fixation devices and methods of use
US9901458B1 (en) 2011-09-23 2018-02-27 Samy Abdou Spinal fixation devices and methods of use
US9380932B1 (en) 2011-11-02 2016-07-05 Pinnacle Spine Group, Llc Retractor devices for minimally invasive access to the spine
US10111757B2 (en) 2012-10-22 2018-10-30 Cogent Spine, LLC Devices and methods for spinal stabilization and instrumentation
US10070970B2 (en) 2013-03-14 2018-09-11 Pinnacle Spine Group, Llc Interbody implants and graft delivery systems
WO2018200469A1 (en) * 2017-04-24 2018-11-01 University Of Maryland, Baltimore Cloward-style cervical mesh cage with lateral stabilizers

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DK871419T3 (en)
AT208172T (en) 2001-11-15
EP0871419A1 (en) 1998-10-21
DE69616823D1 (en) 2001-12-13
FR2742652A1 (en) 1997-06-27
ES2163666T3 (en) 2002-02-01
FR2742652B1 (en) 1998-02-27
DE69616823T2 (en) 2002-05-29
DK0871419T3 (en) 2002-01-07
EP0871419B1 (en) 2001-11-07

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